Assignee
OSAKA TRANSFORMER CO LTD
JP·8 granted patents·377 citations·filing 1974–1983
Top patents by PatentIndex Score
8 records- 0196US4496788APhotovoltaic deviceOSAKA TRANSFORMER CO LTD·Filed 1983·Granted Jan 29, 1985·143 cites·35 claims
- 0290US4125759AMethod and apparatus for shortcircuiting arc weldingOSAKA TRANSFORMER CO LTD·Filed 1975·Granted Nov 14, 1978·57 cites·6 claims
- 0385US4409465APulse arc welding method and device in which pulse current and background current have a constant current characteristicOSAKA TRANSFORMER CO LTD·Filed 1981·Granted Oct 11, 1983·47 cites·17 claims
- 0480US4310744AA.C. Arc welderOSAKA TRANSFORMER CO LTD·Filed 1980·Granted Jan 12, 1982·30 cites·9 claims
- 0575US4482797AElectrode biasing welding torchOSAKA TRANSFORMER CO LTD·Filed 1982·Granted Nov 13, 1984·30 cites·12 claims
- 0672US3995137AAlternating current arc welderOSAKA TRANSFORMER CO LTD·Filed 1974·Granted Nov 30, 1976·25 cites·8 claims
- 0770US4563569AGas shielded arc welding torch with consumable electrode wireOSAKA TRANSFORMER CO LTD·Filed 1983·Granted Jan 7, 1986·25 cites·15 claims
- 0870US4101755AAutomatic arc welderOSAKA TRANSFORMER CO LTD·Filed 1977·Granted Jul 18, 1978·20 cites·23 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →